[High-Resolution Lossless Audio] With a 2.0-inch HD display, the H2 HIFI MP3 player provides in-depth and detailed high-resolution audio that is free from distortion. It supports all popular file formats, including FLAC, APE, DFF, MP3, WAV, WMA, M4A, MP2, AAC, OGG, AIFF, and Native DSD (up to 128 bit/5.6 MHz) using the ESS ES9018K2M DAC for an unparalleled listening experience. [Bluetooth MP3 Player] Featuring 2-way Bluetooth, this MP3 player supports high-definition wireless audio with Qualcomm aptX technology. It can transmit signals as a sender or amplify music wirelessly as a receiver, delivering uninterrupted high-fidelity audio for up to 10 hours when paired with headphones or a Bluetooth device. [Classic & Durable Design] With its intuitive controls for Play/Pause, Next/Previous, and an APLS scroll wheel, this portable audio player makes it easy to navigate your music library. It comes with a line out and earphone out port, allowing for flexible usage such as connecting to a car auxiliary cable or a home audio system. Its small size and high-grade zinc alloy chassis make it ideal for on-the-go listening. [Hifi DAC Input] This lossless music player can function as a digital source by connecting it to a USB amp with DAC input, and can also be used as an external decoding amplifier when connected to a mobile phone or computer. [Long Standby Time&Expandable Storage] Enjoy up to 10 hours of uninterrupted high-res audio via headphone or Bluetooth. The H2 does not have built-in memory, but it comes with a 64GB SD card pre-inserted. Expand storage up to 512GB with a Micro SD card and enjoy a music library with up to 14,999 songs.